AXT, Inc. Announces Participation in Jefferies 3rd Annual Technology Conference

FREMONT, CA--(Marketwire - September 14, 2009) - AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound semiconductor substrates, today announced that Morris S. Young, chief executive officer and Raymond A. Low, acting chief financial officer will present at the Jefferies 3rd Annual Technology Conference to be held at the Mandarin Oriental Hotel in New York City on Tuesday, September 15, 2009 at 4 pm ET.

A link to the live webcast will be available on the Investor Relations section of the company's website at www.axt.com prior to the presentation. A replay of the webcast will be available shortly following the live presentation.

About AXT, Inc.

AXT designs, develops, manufactures and distributes high-performance compound and single element semiconductor substrates comprising gallium arsenide (GaAs), indium phosphide (InP) and germanium (Ge) through its manufacturing facilities in Beijing, China. In addition, AXT maintains its sales, administration and customer service functions at its headquarters in Fremont, California. The company's substrate products are used primarily in lighting display applications, wireless communications, and fiber optic communications. In addition to our manufacturing facilities in China, we have invested in five joint ventures producing raw materials. For more information, see AXT's website at http://www.axt.com.

Contact Information: Contacts: Raymond A. Low Acting Chief Financial Officer (510) 683-5900 Leslie Green Green Communications Consulting, LLC (650) 312-9060